Four Make 999

Choose four different numbers from the table and add them up.

339 248 329 165
227 391 238 412
318 207 369 348
286 359 401 195

How many different ways are there of making 999?

[Note to teacher: Click on the numbers above to select them. Correct solutions will be recorded above
but the application does not check for repeats or the same numbers added in a different order.

The Four Calculating Super Heroes

Answers

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Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.



Try "Three Make 1000", it's a little easier!


Rebecca Laura Holly Amy Georgia Tyler & Kieran, Whitby High, Ellesmere Port

Wednesday, May 16, 2007

"More Solutions from Whitby Technology College:

235 + 280 + 212 + 272 = 999
280 + 280 + 227 + 212 = 999
272 + 272 + 227 + 228 = 999"

J. Adam, Purbrook Junior

Friday, September 11, 2009

"Jasmine in my maths class found 363 + 363 + 273 = 999. Well done!"

Belvedere Academy Liverpool, Year 7 Set 3

Friday, October 15, 2010

"271 + 280 + 291 + 157 (Yasmine)
265 + 275 + 291 + 168 (Demi)
We had more but did not have time to put them on."

Lauren Livingstone, Holyrood Secondary

Thursday, October 28, 2010

"Mrs Boussouara's maths class found this difficult. Although it made us think about numbers and got our brains working."

Holyrood Secondary, Glasgow

Thursday, March 22, 2012

"Mrs Boussouara's Maths class thought this was tricky. We liked doing this .we got it in the end.
Jack.Farzad .Nicole . (First year)."

S2, JPA Glasgow

Wednesday, August 29, 2012

"263+255+311+170
380+170+194+255
436+194+199+170
375+170+255+199
372+170+194+263."

Kiefer Kids, Cottage Hill In California

Thursday, August 29, 2013

"Tougher than we thought!
466+195+152+186=999
152+383+278+186=999
162+259+195+383=999
393+152+195+259=999."

Primary 7, Meethill Primary Peterhead

Wednesday, October 1, 2014

"We managed to get 6 different combinations. Our STAR pupils were Patrick and Jamie. We showed good perseverance throughout this challenge."

Nic, Glen Eden Intermediate

Monday, August 24, 2015

"255+348+158+238."

Transum,

Monday, August 24, 2015

"Thanks everyone for your comments. Good to hear that this Starter is providing a suitable challenge. Please note that each time this page is loaded a different of numbers appears in the grid above ... just in case you were wondering why the answers mentioned in the comments above do not work for you! Answers are provided below for Transum subscribers."

David, Thailand

Wednesday, September 2, 2015

"We got nine boys!"

Amy C, Coorara Primary School

Monday, August 24, 2020

"In our class I was the first to find a solution.
448+241+151+159=999."

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